Cosmetic brush



FIG. 1 is a front elevation view of a cosmetic brush;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a left-side elevation view thereof;

FIG. 4 is a right-side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof.

The portions of the article shown in broken lines form no part of theclaimed design.

CLAIM The ornamental design for a cosmetic brush, as shown anddescribed.